XXI Polar Symposium : 60 years of polish research of Spitsbergen : Warszawa, Poland, September, 23-24, 1994 - Sympozjum polarne 1994 : Varšava, Polsko); Zalewski, Seweryn Maciej (Warszawa : Institute of Geophysics of Polish Academy of Sciences, 1994)
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Keywords: polární výzkum; polar research; sborníky; papers of several authors